Power-transmitting mechanism.



W. S. LEWIS. POWER TRANSMITTING MECHANISM. APPucATloN FILED Nov. 28.1916.

Patented Oct. 2, 1917.

WITNESSES:

g UNITED sTATEs PATENT oEFICE.

WALTER S. LEWIS, OF SAN FRANCISCO, CALIFORIA.

POWER-TRANSMITTING MEcHANIsM. j Q

1,241,864, n "mM/pf. s Specification of Letters Patent. PatentedQCt. 2,1917.

' l 1"' Application filed November 28, 1916. Serial No. 133,866.

To all 'whom z't may concern ."leit known that I, WALTER S. LEWIS, acitizen of the United States, residing at the y `city and county of SanFrancisco and State of California, have invented a new and usefulPower-Transmitting Mechanism, of`

. ri which the following is a specification.

l which will be more fully explained by ref- My invention relates to adisposition and arrangement of a series of rollers for transmittingmotion and pressure, and in the provision of anti-frictional bearingsupon which the rollers are carried, and in means by which the pressureupon the rollers may be varied and adjusted.

It also comprises details of construction erenee to the accompanyingdrawings, in

and their bearings. Above the top of the frame A is an arm 2, throughone end of which` passes a screw 3, by the turning of *which the arm'maybe raised or lowered.

Projecting from this arm are arms 4, having slots 5 made in them toreceive 'the ends of the shafts 6.

' Shafts 7, 8 and 9 are 'fixed in the main frame A and they areconnected by spiral springs 10 which tend to draw the shafts toward eachother. These springs have screws and nuts by whieh any desired de-` greeof tension may be produced, and a corresponding pressure willbe broughtupon `the shafts and the pulleys or rollers borne by them. fThe rollers12 are mounted upon lthese shafts and their'faces Amay be pressed by thesprings and adjusting nuts into any desired degree of peripheralpressure. Be-

neath these rollers are the larger rollers 13,

14 and 15, each having contact with the other and `there is anintermediate contactingroller 16, by which an adjustable pressure maybetransmitted between the rst 'and second group of rollers. From theselatterpressure may be adjustably transmitted `to the rim of aV wheel 17,which has a I pressure regulator 18, each having nuts and screws forthat purpose. 455` r ments between it andthe ,roller 16,

suspended by links 21`and also has adjust- This roller 13 isA The shaftswhich are fixed in their frame bearingsfare providedl withanti-frictional bearings' upon which the rollers are borne and retainedin position as they rotate.

These are 'constructed as follows: Upon the shaft, as 16', is a fixedcollar 20, and at each end of and a little beyondlit are fixed disks 21.Between these disks is a hub sleeve 22 for the'roller, and this issupported upon ball bearings which run in the channel between the part20 andthe ydisks 21. By i this means the rollers .are carriedlby theshafts but out of contact with them and with the least possible frictioninthe transmission of motion through this partof the apparatus.

Having thus described my inventiom'what I claim `and desire to securebyLetters 4Patent isj 1. Inmechanism for transmitting motlon,

a frame havin shaft bearings, a roller jour- 2. In a mechanism fortransmitting mo-` tion, a. frame having shaft bearings, a rollerjournaled in one frame bearing, afs'econd roller on the frame spacedfrom'the'first roller, a third roller frictionally connecting the firstand second rollers, an adjustable spring connected to the third rollerfor exerting a pull thereon to draw it into closer contact with thefirst tw'o rollers, 'an arm pivoted at one end' to the frame, aspringconnecting the opposite end ofthe arm` to thethird roller to exert apull thereon opposingthat of the, first spring, and means lfor adjustingthe arm to vary the tenslonof the second spring.

3. In a' mechanism foritransmitting, 'mov tion, a frame havinr shaftbearings, a, roller journaled in one frame bearing, a second rolleron'the frame spaced from the vfirst roller, a third roller frictionallyconnecting the first and second rollers, an adjustableA spring connectedto the third rollerfor' exerting a pull thereon to draw it into 'closercontact with the first two rollers, anarm pivoted at .one end to theframe, a spring .Connecting the Q PPQS@ @hd of the .arm to the thirdroller to exert a pull thereon opposingthat of the first spring, aroller journaled in the arm, an'- a'djlnsting screwv carried by theouter end of the arm and bearing on the frame for varying the-tensionof'the second spring a1 id means connecting the secr` `Vond and fourthrollers ,spring'connected to the third roller forexertingY alpullthercon toldraw it into. closer contact with the first two. rollers,an arm pivoted at one lend toY the frame, a spring connecting, theopposite, end-ofthe arm to the, third roller` to; exertI a pullthereonwopposing. thatof the first spring, said armhaving. spacedelongated bearings, trictionally `connected rollers journaled in thearmbearingsa connecting Iroller frictionally connecting` onefof said arm-.supported rollers, to the second roller, a kspring tending to, moiresaid connecting roller intocloser Contact ,4 vwith and betweentherollersit,connectsand means for adjusting the arm, therollers `sup,ported`bythe latter adjusting themselves injt e elongatedarm bea-rings. J

5. In inechai'iism for` transmitting motio na frame haringshaftbearings, a roller jonrnaled in one frame bearing, a second rollerjblirnaled `in the frame, a spring for each` roller yieldingly' holdingthe rollers, in friotionalcontact .with each other, a third lroller-,.akvring-like journal member supporting the sagine,y an armIpivotally connecting the. jiournal member to. the frame, and means toladjust thejournal member on the arm for moving the third/roller towardand. from the second roller.

U6'. In a motion transmitting mefhanism, a

franiea roller journaledfthereon, av second roller spaced from the firstroller, a third roller for connecting thefirsttwo. rollers, adjustablespring .means exerting a pull on lthe third roller between thefi'rstitwoA rollers,

. and Variable. means exerting a pull onthe.

third roller obtusely angularvtoi-the pull by j 7.1m nietige tra theLfirst means.

` frame, a rfller journaled thereon, a second roller spaced from thefirsty rol-ler,.a third i roller'vfor connecting the first. two rollers,

`adjiisable spring means exerting a pull on the third roller betweenthe. first two rollers,

pair of. yieldably mounted rollers contatiigwith the secondzroller, andmeans. yield yteiidi'ng to pull tlievlatterA between said Y paire-of rolers.

A' 8.., In yaniotion transmitti'ng4 mechanism, a

frame, a `roller jonr-naled thereon,I asecond roller yspaced from thefirst roller, avthird roller for connecting `the first two, rollers,

nsmitting mechanism,

' adjustable spring means exerting a' pull on the third roller betweenthe first two rollers, ana-rm pii'fote'd-at'oneend to the frame, aroller journaled therein, a roller connecting the lasty roller to thesecond roller, and resilient means exerting a pull on the second 9. In amotion transmitting mechanism, a frame, a roller ]ournaled,thereon, asecond .roller spaced from thefirst roller,a tjhird rollerforgconnectingf the first two rollers,

adjustable spring meansexerting a pull, on

means exerting apull on the second connectinglrollcr'in a directionbetween the second and fourth rollers, a roller contacting with thesecond roller on thel opposite side `from the second connecting rol-ler,and resilient means exerting a pull on the second. roller troni thethird roller and in adirection between the-J second connecting rollerand: the

sixth rol-ler. v .l Y l 10. In a motion transmitting mechanism, a frame,la rollerjournaled thereon, a second roller spaced from the firstroller, a thi-rd roller for connecting thev first ltwo rollers,

adjustable spring means exerting a pull on the third roller between thefirst two rollers, an arm pivoted at oneend tothe trame, a rolderournaled therein, ay roller-'- connecting the last roller tothe secondroller, resilient means exerting a pull on the second connecting rollerin aA directioncbetw'eenthe second and fourth rollers, a roller.contacting lwith the second roller on the` opposite" side `from thesecond connecting roller, resilient means exerting a pull on the secondroller frorng-the third roller* and in a direction between the second'connecting roller and the sixth roller, a.V yring-like journal memberpivotally connectedto theframe, and a roller rotatable in the journalmemberl and` contacting with thesixth roller. y

v v11. In a motiontransrnitting mechanism, a frame, a roller journaledthereon, a second roller spaced from thetfirst roller, a third`lI'Ollrer for connectingftghe first two rollers,

adjustablespring lmeans exerting-a pull on the thirdv roller between thefirst two. rollers,

an varm pvoted at'one' endto the frame, a

roller journaled therein, ay roller. connecting the last, roller to'lthe second roller, resilient means exerting a pull, on the secondconnectingroller in 'a `direction .between the second and ,fourthrollers, a roller contacting with.v .the second roller on the'` oppositekside from 'connecting roller in a direction lbetween the v `second andfourth rollers.

nected to the frame, a roller rotatable in the journal member andcontacting With the sixth roller, and means Jfor positively adjustingthe journal member to move its roller in directions toward and from theseventh roller.

l2. In a motion transmitting mechanism, a frame, a roller journaledthereon, a second roller spaced from the first roller, a third rollerfor connecting the first two rollers, adjustable spring means exerting apull on the third roller between the first tWo rollers,

an arm pivoted at one end to the frame, a

roller journaled therein, a roller connecting the last roller to thesecond roller, resilient 15 Witnesses.

WALTER S. LEWIS. Witnesses:

JOHN I-I. HERRING, W. W. HEALEY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

